A quiet drainage covering structure for drainage pipes
By installing damping components and tapered protrusions on the outside of the main drainage pipe, combined with flexible sheets and cable ties, the problem of unstable connection between the sound insulation cotton and the main pipe is solved, improving connection stability and aesthetics, and enhancing noise reduction effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN GUOJI DECORATING & ENG CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-05-26
Smart Images

Figure CN224281813U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of quiet drainage technology for drainage pipes, and in particular to a quiet drainage covering structure for drainage pipes. Background Technology
[0002] The main drainage pipe is a core component of a building's drainage system, transporting wastewater from various branch pipes (such as sinks, kitchen sinks, floor drains, and toilets) to municipal pipelines or sewage treatment plants. Main drainage pipes have a relatively large diameter (typically ≥110mm) and strong pressure resistance, ensuring smooth wastewater discharge and preventing blockages.
[0003] In existing residential buildings, main drainage pipes extend vertically downwards from the top floor to the underground drainage network. Each household has a section of this main pipe in their bathroom and / or balcony to collect wastewater. During peak water usage times, such as mealtimes and evenings, these main drainage pipes handle large volumes of wastewater, which often generates significant noise as it flows downwards. Currently, to reduce the noise generated by the wastewater flow in these main drainage pipes, sound-absorbing cotton is often wrapped around the outside, and decorative tape is then applied to the outside of the sound-absorbing cotton.
[0004] However, the connection between the sound insulation cotton and the main drainage pipe is not very stable, and it is easy to rotate and move up and down when touched. In addition, the main drainage pipe in the room has a certain length. The higher the floor height, the longer the main drainage pipe and the longer the corresponding sound insulation cotton. This can easily cause the sound insulation cotton to be compressed on the lower side under its own weight, resulting in the upper side of the main drainage pipe being exposed. There are areas that need improvement. Utility Model Content
[0005] In order to improve the problems in related technologies, such as poor stability of the connection between sound insulation cotton and drainage main pipe, easy to be touched, and the lower side of the sound insulation cotton being easily compressed under its own weight, resulting in the upper side of the drainage main pipe being exposed, this application provides a drainage pipe quiet drainage covering structure.
[0006] This application provides a drainage pipe quiet drainage covering structure, which adopts the following technical solution:
[0007] A quiet drainage covering structure for a drainage pipe includes a main drainage pipe and sound insulation cotton covering the outside of the main drainage pipe. A damping element is provided between the outer wall of the main drainage pipe and the sound insulation cotton. The damping element is fixed to the main drainage pipe. A conical protrusion is provided on the damping element. The conical protrusion faces away from the outer wall of the main drainage pipe and is embedded in the sound insulation cotton.
[0008] The outer side of the sound insulation cotton is also surrounded by a fastening element for tightening the sound insulation cotton.
[0009] By adopting the above technical solution, in practical application, the damping component is fixed to the main drainage pipe, and the sound insulation cotton is partially embedded in the conical protrusion. The sound insulation cotton is then tightened by the fastening component, so that the conical protrusion can be stably embedded in the sound insulation cotton. Thus, the damping component and the conical protrusion work together to improve the stability of the connection between the sound insulation cotton and the main drainage pipe, reduce the occurrence of the sound insulation cotton being touched, and reduce the occurrence of the upper side of the main drainage pipe being exposed due to the compression of the lower side of the sound insulation cotton under its own weight.
[0010] Preferably, the damping element is a flexible sheet, and the conical protrusion is integrally formed with the flexible sheet, with multiple conical protrusions arranged along the direction of the flexible sheet.
[0011] By adopting the above technical solution, the damping component is set as a flexible sheet, which facilitates the installation of the damping component.
[0012] Preferably, the flexible sheet is arranged around the main drain pipe, and the flexible sheet is bonded and fixed to the outer wall of the main drain pipe.
[0013] By adopting the above technical solution, the flexible sheet is bonded to the outer wall of the drainage main pipe, which facilitates the installation of the flexible sheet; the flexible sheet is wrapped around the drainage main pipe, and the conical protrusions on the flexible sheet can play a more comprehensive stabilizing role for the sound insulation cotton.
[0014] Preferably, the fastening element is a cable tie, which is located on the upper side of the flexible sheet and adjacent to the flexible sheet.
[0015] By adopting the above technical solution, the cable tie is placed on the upper side of the flexible sheet and closely adjacent to the flexible sheet. The cable tie has a high degree of tightness to the nearby sound insulation cotton, which can improve the tightness and stability of the connection between the sound insulation cotton and the conical protrusion, and further improve the stability of the sound insulation cotton.
[0016] Preferably, the outer side of the sound insulation cotton is covered with a decorative layer, which is adhered to the outer side of the sound insulation cotton.
[0017] By adopting the above technical solution, a decorative layer is set on the outside of the sound insulation cotton, thereby improving the aesthetics of the outside of the drainage main pipe and helping to further improve the stability of the sound insulation cotton.
[0018] Preferably, the sound insulation cotton is provided with an end cap at its end. The end cap is annular and is arranged around the main drainage pipe. The end of the sound insulation cotton abuts against the end cap.
[0019] Furthermore, the sound insulation cotton is provided with an end cap at its end. The end cap is annular and is arranged around the main drainage pipe. The end of the sound insulation cotton abuts against the end cap, and a connecting cylinder is fixed to the side of the end cap near the sound insulation cotton. The connecting cylinder is fitted with the sound insulation cotton.
[0020] By adopting the above technical solution, the sound insulation cotton is often cut manually during construction, and the ends are relatively rough. The sound insulation cotton is installed by a connecting cylinder, and the end cap contacts the ground or roof surface, which helps to improve the aesthetics of the outside of the drainage main pipe and reduces the occurrence of the drainage main pipe being exposed at the end of the sound insulation cotton.
[0021] Preferably, the side wall of the end cap away from the sound insulation cotton is covered with an elastic pad, which is pressed against the ground or roof surface.
[0022] By adopting the above technical solutions, it is helpful to improve the tightness of the end cap in contact with the ground or roof surface.
[0023] Preferably, the end cap includes a first half-cap and a second half-cap, and a lug is fixed to the side of the first half-cap near the second half-cap, and a fastener is connected between the lug and the second half-cap.
[0024] The connecting cylinder includes a first half-cylinder and a second half-cylinder, the first half-cylinder being integrally formed on the first half-cover, and the second half-cylinder being formed on the second half-cover.
[0025] By adopting the above technical solution, setting the cover body as a first half cover and a second half cover, and setting the connecting cylinder as a first half cylinder and a second half cylinder, it helps to improve the convenience of installing the end cover and the connecting cylinder.
[0026] Preferably, the first half-cylinder has a retaining edge on each of its two edges near the second half-cylinder, and the second half-cylinder has a retaining groove on each of its two edges near the first half-cylinder, with the retaining edges respectively embedded in the retaining groove.
[0027] By adopting the above technical solution, it is helpful to improve the tightness of the connection between the first half-cylinder and the second half-cylinder.
[0028] Preferably, a protective cover is also provided on the outside of the sound insulation cotton, the protective cover is arranged around the drainage main pipe, and the lower side of the protective cover is fixed to the ground.
[0029] By adopting the above technical solutions, the cleanliness of the outside of the main drainage pipe can be improved, and the protective cover also has a certain sound insulation effect, thus improving the noise reduction effect on the main drainage pipe. Attached Figure Description
[0030] Figure 1 This is a schematic diagram illustrating the overall structure of the drainage pipe's quiet drainage enclosure structure, as shown in Example 1.
[0031] Figure 2 This is a partial cross-sectional view of the structure of the flexible sheet, cable ties, and sound insulation cotton, as shown in Example 1.
[0032] Figure 3 for Figure 2 The enlarged view of part A mainly shows the structure of the flexible sheet and cable ties;
[0033] Figure 4 This is a schematic diagram illustrating the flexible sheet structure, as shown in Example 1.
[0034] Figure 5 This is a schematic diagram illustrating the end cap structure, as shown in Example 1.
[0035] Figure 6 This is an exploded view of the end cap structure, as shown in Example 1.
[0036] Figure 7 This is a schematic diagram illustrating the protective cover structure, as shown in Example 2.
[0037] Figure 8 This is a partial cross-sectional view of the protective cover structure, which is the main feature of Embodiment 2.
[0038] Reference numerals: 1. Main drain pipe; 2. Sound insulation cotton; 3. End cap; 31. Connecting cylinder; 311. First half cylinder; 3112. Edge clamp; 312. Second half cylinder; 3121. Slot; 32. First half cap; 321. Lug; 322. Fastener; 33. Second half cap; 34. Elastic pad; 4. Damping component; 41. Flexible sheet; 42. Conical protrusion; 5. Fastening component; 51. Cable tie; 6. Decorative layer; 7. Protective cover. Detailed Implementation
[0039] The present application will be further described in detail below with reference to the accompanying drawings.
[0040] This application discloses a drainage pipe quiet drainage covering structure.
[0041] Example 1:
[0042] Reference Figure 1 and Figure 2 The drainage pipe quiet drainage covering structure includes a drainage main pipe 1 and sound insulation cotton 2 covering the outside of the drainage main pipe 1. Both the upper and lower ends of the sound insulation cotton 2 are abutted by end caps 3. Both end caps 3 are fitted onto the drainage main pipe 1, and the two end caps 3 abut against the ground and the roof surface respectively.
[0043] See Figure 2 and Figure 3 Specifically, a damping element 4 is provided between the outer wall of the drainage main pipe 1 and the sound insulation cotton 2. The damping element 4 is a flexible sheet 41, which surrounds the drainage main pipe 1 and is bonded and fixed to the outer wall of the drainage main pipe 1. A conical protrusion 42 is provided on the flexible sheet 41 (see...). Figure 4The conical protrusions 42 face away from the outer wall of the main drain pipe 1. Multiple conical protrusions 42 are evenly spaced along the direction of the flexible sheet 41, and the conical protrusions 42 are embedded in the sound insulation cotton 2. Furthermore, multiple flexible sheets 41 are evenly spaced along the axial direction of the main drain pipe 1. In this embodiment, six flexible sheets 41 are evenly spaced along the axial direction of the main drain pipe 1, and six conical protrusions 42 are evenly spaced along the flexible sheets 41.
[0044] The outer side of the sound insulation cotton 2 is also surrounded by a fastening element 5 for tightening the sound insulation cotton 2. The fastening element 5 is a cable tie 51, which is fastened to the outer side of the sound insulation cotton 2 and is located on the upper side of the flexible sheet 41 and adjacent to the flexible sheet 41. Each flexible sheet 41 has a corresponding adjacent cable tie 51. Of course, in order to tighten the sound insulation cotton 2, the number of cable ties 51 can be greater than the number of flexible sheets 41.
[0045] See Figure 5 and Figure 6 The two end caps 3 have the same structure and installation method, and the following description will take one of them as an example. The end cap 3 is annular plate. A connecting cylinder 31 is fixed on the side of the end cap 3 near the sound insulation cotton 2. The diameter of the connecting cylinder 31 is larger than the inner diameter of the end cap 3, and the sound insulation cotton 2 is fitted onto the connecting cylinder 31. The end cap 3 includes a first half cap 32 and a second half cap 33. The first half cap 32 has an integrally formed lug 321 on both sides opposite to the second half cap 33. Both lugs 321 are connected to the second half cap 33 by fasteners 322. In this embodiment, the fasteners 322 are fixing bolts. The fixing bolts pass through the lugs 321 and are threaded into the second half cap 33. The connecting cylinder 31 includes a first half cylinder 311 and a second half cylinder 312. The first half cylinder 311 is integrally formed on the first half cap 32, and the second half cylinder 312 is formed on the second half cap 33. Furthermore, the first half-cylinder 311 has retaining edges 3112 on both edges near the second half-cylinder 312, and the second half-cylinder 312 has retaining grooves 3121 on both edges near the first half-cylinder 311, with the retaining edges 3112 respectively embedded in the retaining grooves 3121. Additionally, the first half-cover 32 and the second half-cover 33 are both covered with elastic pads 34 on the side facing away from the connecting cylinder 31. In this embodiment, the elastic pads 34 can be any type of sponge pad, rubber pad, etc.
[0046] In addition, see Figure 2 The sound insulation cotton 2 is covered with a decorative layer 6, which is adhered to the outside of the sound insulation cotton 2. The cable tie 51 is located inside the decorative layer 6, and both connecting tubes 31 are located inside the decorative layer 6.
[0047] It should be noted that for locations on the main drainage pipe 4 that require connection to branch pipes or inspection ports, openings can be reserved in the sound insulation cotton 5 and the decorative layer 6.
[0048] The implementation principle of a quiet drainage coating structure for a drainage pipe in an embodiment of this application is as follows: In actual application, the flexible sheet 41 is bonded to the drainage pipe, and a part of the conical protrusion 42 will be embedded in the sound insulation cotton 2, and the sound insulation cotton 2 is tightened by the tie strap 51, so that the conical protrusion 42 can be stably embedded in the sound insulation cotton 2. The cooperation of the flexible sheet 41, the conical protrusion 42 and the tie strap 51 improves the stability of the connection between the sound insulation cotton 2 and the main drainage pipe 1.
[0049] Embodiment 2:
[0050] Referring to Figure 7 and Figure 8 , the difference between this embodiment and Embodiment 1 is that a protective cover 7 is further provided outside the decorative layer 6, and the protective cover 7 is arranged around the main drainage pipe 1. Generally, the main drainage pipe 1 is located near a corner or a wall surface. When the main drainage pipe 1 is adjacent to a corner, the protective cover 7 is L-shaped, the lower end of the protective cover 7 is adhesively fixed to the ground, the upper side of the protective cover 7 is adhesively fixed to the roof surface, and the two side edges of the protective cover 7 are respectively fixed to the corresponding wall surfaces. When the main drainage pipe 1 is adjacent to a wall surface, the protective cover is in a "C" shape, the lower end of the protective cover 7 is adhesively fixed to the ground, the upper side of the protective cover 7 is adhesively fixed to the roof surface, and the two side edges of the protective cover 7 are respectively adhesively fixed to the wall surfaces.
[0051] In addition, the material of the protective cover 7 in this embodiment can be calcium silicate board.
[0052] The above are all preferred embodiments of this application, and the protection scope of this application is not limited hereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.
Claims
1. A quiet drainage covering structure for a drainage pipe, comprising a main drainage pipe (1) and sound-insulating cotton (2) covering the outside of the main drainage pipe (1), characterized in that: A damping element (4) is provided between the outer wall of the main drain pipe (1) and the sound insulation cotton (2). The damping element (4) is fixed to the main drain pipe (1). A conical protrusion (42) is provided on the damping element (4). The conical protrusion (42) faces away from the outer wall of the main drain pipe (1) and is embedded in the sound insulation cotton (2). The outer side of the sound insulation cotton (2) is also surrounded by a fastening element (5) for tightening the sound insulation cotton (2).
2. The drainage pipe quiet drainage covering structure according to claim 1, characterized in that: The damping element (4) is a flexible sheet (41), and the conical protrusion (42) is integrally formed with the flexible sheet (41). Several conical protrusions (42) are arranged along the direction of the flexible sheet (41).
3. The drainage pipe quiet drainage covering structure according to claim 2, characterized in that: The flexible sheet (41) is arranged around the drain pipe (1) and is bonded and fixed to the outer wall of the drain pipe (1).
4. The drainage pipe quiet drainage covering structure according to claim 3, characterized in that: The fastening element (5) is a cable tie (51), which is located on the upper side of the flexible sheet (41) and adjacent to the flexible sheet (41).
5. The drainage pipe quiet drainage covering structure according to claim 1, characterized in that: The sound insulation cotton (2) is covered with a decorative layer (6) on the outside, and the decorative layer (6) is adhered to the outside of the sound insulation cotton (2).
6. The drainage pipe quiet drainage covering structure according to claim 1, characterized in that: The sound insulation cotton (2) is provided with an end cap (3) at its end. The end cap (3) is annular and is arranged around the drainage main pipe (1). The end of the sound insulation cotton (2) abuts against the end cap (3). A connecting tube (31) is fixed on the side of the end cap (3) near the sound insulation cotton (2). The connecting tube (31) is fitted with the sound insulation cotton (2).
7. The drainage pipe quiet drainage covering structure according to claim 6, characterized in that: The end cap (3) has an elastic pad (34) laid on the side wall away from the sound insulation cotton (2), and the elastic pad (34) is pressed against the ground or roof surface.
8. The drainage pipe quiet drainage covering structure according to claim 6, characterized in that: The end cap (3) includes a first half cap (32) and a second half cap (33). The first half cap (32) is fixed with a lug (321) on the side near the second half cap (33). A fastener (322) is connected between the lug (321) and the second half cap (33). The connecting cylinder (31) includes a first half-cylinder (311) and a second half-cylinder (312). The first half-cylinder (311) is integrally formed on the first half-cover (32), and the second half-cylinder (312) is formed on the second half-cover (33).
9. The drainage pipe quiet drainage covering structure according to claim 8, characterized in that: The first half-cylinder (311) has a retaining edge (3112) on both edges near the second half-cylinder (312), and the second half-cylinder (312) has a retaining groove (3121) on both edges near the first half-cylinder (311). The two retaining edges (3112) are respectively embedded in the retaining groove (3121).
10. A drainage pipe quiet drainage covering structure according to claim 1, characterized in that: The sound insulation cotton (2) is also provided with a protective cover (7) on the outside. The protective cover (7) is arranged around the drainage main pipe (1), and the lower side of the protective cover (7) is fixed to the ground.